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Quietly enumerate an Active Directory Domain via LDAP parsing users, admins, groups, etc.

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SilentHound

Quietly enumerate an Active Directory Domain via LDAP parsing users, admins, groups, etc. Created by Nick Swink from Layer 8 Security.

Installation

Using pipenv (recommended method)

python3 -m pip install --user pipenv
git clone https://github.com/layer8secure/SilentHound.git
cd silenthound
pipenv install

ℹ️ This will create an isolated virtual environment with dependencies needed for the project. To use the project you can either open a shell in the virtualenv with pipenv shell or run commands directly with pipenv run.

From requirements.txt (legacy)

⚠️ This method is not recommended because python-ldap can cause many dependency errors.

Install dependencies with pip:

python3 -m pip install -r requirements.txt
python3 silenthound.py -h

Usage

$ pipenv run python silenthound.py -h
usage: silenthound.py [-h] [-u USERNAME] [-p PASSWORD] [--hashes HASHES] [-o OUTPUT] [-g] [-n] [-k] [--kerberoast] [--ssl] TARGET domain

Quietly enumerate an Active Directory environment.

positional arguments:
  TARGET                Domain Controller IP
  domain                Dot (.) separated Domain name including both contexts e.g. ACME.com | HOME.local | htb.net

optional arguments:
  -h, --help            show this help message and exit
  -u USERNAME, --username USERNAME
                        Supports SIMPLE & NTLM BIND. SIMPLE BIND use username e.g. bobdole | NTLM BIND use domain\\user e.g. HOME.local\\bobdole
  -p PASSWORD, --password PASSWORD
                        LDAP or Active Directory password
  --hashes HASHES       Uses NTLM BIND to authenticate with NT:LM hashes
  -o OUTPUT, --output OUTPUT
                        Name for output files. Creates output files for hosts, users, domain admins, and descriptions in the current working directory.
  -g, --groups          Display Group names with user members.
  -n, --org-unit        Display Organizational Units.
  -k, --keywords        Search for a list of key words in LDAP objects.
  --kerberoast          Identify kerberoastable user accounts by their SPNs.
  --ssl                 Use a secure LDAP server on default 636 port.  

Example

$ pipenv run python silenthound.py -u 'svc_tgs' -p 'P@$$w0rd123' 10.10.10.100 active.htb -g -n -k --kerberoast


 _____ _ _            _   _    _                       _ 
/ ____(_) |          | | | |  | |                     | |
| (___  _| | ___ _ __ | |_| |__| | ___  _   _ _ __   __| |
\___ \| | |/ _ \ '_ \| __|  __  |/ _ \| | | | '_ \ / _` |
____) | | |  __/ | | | |_| |  | | (_) | |_| | | | | (_| |
|_____/|_|_|\___|_| |_|\__|_|  |_|\___/ \__,_|_| |_|\__,_|


  author: Nick Swink aka c0rnbread

  company: Layer 8 Security <layer8security.com>
  
---------------------------------------------------------------------------

[-] Connecting with SIMPLE AUTH to LDAP server 10.10.10.100...
[*] Writing cached data to .active-htb.pickle...
[+] Hosts [1]
DC - 10.10.10.100


[+] Domain Admins [1]
CN=Administrator,CN=Users,DC=active,DC=htb


[+] Domain Users [4]
krbtgt
Guest
Administrator
SVC_TGS@active.htb


[+] Descriptions [0]


[+] Group Memberships Found [11]
CN=Denied RODC Password Replication Group,CN=Users,DC=active,DC=htb
CN=Read-only Domain Controllers,CN=Users,DC=active,DC=htb
CN=Group Policy Creator Owners,CN=Users,DC=active,DC=htb
CN=Domain Admins,CN=Users,DC=active,DC=htb
CN=Cert Publishers,CN=Users,DC=active,DC=htb
CN=Enterprise Admins,CN=Users,DC=active,DC=htb
CN=Schema Admins,CN=Users,DC=active,DC=htb
CN=Domain Controllers,CN=Users,DC=active,DC=htb
CN=krbtgt,CN=Users,DC=active,DC=htb


CN=Windows Authorization Access Group,CN=Builtin,DC=active,DC=htb
CN=S-1-5-9,CN=ForeignSecurityPrincipals,DC=active,DC=htb


CN=Pre-Windows 2000 Compatible Access,CN=Builtin,DC=active,DC=htb
CN=S-1-5-11,CN=ForeignSecurityPrincipals,DC=active,DC=htb


CN=Group Policy Creator Owners,CN=Users,DC=active,DC=htb
CN=Administrator,CN=Users,DC=active,DC=htb


CN=Domain Admins,CN=Users,DC=active,DC=htb
CN=Administrator,CN=Users,DC=active,DC=htb


CN=Enterprise Admins,CN=Users,DC=active,DC=htb
CN=Administrator,CN=Users,DC=active,DC=htb


CN=Schema Admins,CN=Users,DC=active,DC=htb
CN=Administrator,CN=Users,DC=active,DC=htb


CN=IIS_IUSRS,CN=Builtin,DC=active,DC=htb
CN=S-1-5-17,CN=ForeignSecurityPrincipals,DC=active,DC=htb


CN=Guests,CN=Builtin,DC=active,DC=htb
CN=Domain Guests,CN=Users,DC=active,DC=htb
CN=Guest,CN=Users,DC=active,DC=htb


CN=Users,CN=Builtin,DC=active,DC=htb
CN=Domain Users,CN=Users,DC=active,DC=htb
CN=S-1-5-11,CN=ForeignSecurityPrincipals,DC=active,DC=htb
CN=S-1-5-4,CN=ForeignSecurityPrincipals,DC=active,DC=htb


CN=Administrators,CN=Builtin,DC=active,DC=htb
CN=Domain Admins,CN=Users,DC=active,DC=htb
CN=Enterprise Admins,CN=Users,DC=active,DC=htb
CN=Administrator,CN=Users,DC=active,DC=htb


[+] Organizational Units Found [1]
OU=Domain Controllers,DC=active,DC=htb


[+] Key Strings [18]
CN=Denied RODC Password Replication Group,CN=Users,DC=active,DC=htb
Denied RODC Password Replication Group
Members in this group cannot have their passwords replicated to any read-only domain controllers in the domain
CN=Denied RODC Password Replication Group,CN=Users,DC=active,DC=htb
Denied RODC Password Replication Group
Denied RODC Password Replication Group
Allowed RODC Password Replication Group
Members in this group can have their passwords replicated to all read-only domain controllers in the domain
CN=Allowed RODC Password Replication Group,CN=Users,DC=active,DC=htb
Allowed RODC Password Replication Group



[+] Kerberoastable Users [1]
ServicePrincipalName  Name           MemberOf                                                  PasswordLastSet  LastLogon  
--------------------  -------------  --------------------------------------------------------  ---------------  ----------
active/CIFS:445       Administrator  CN=Group Policy Creator Owners,CN=Users,DC=active,DC=htb  2018-07-18       2022-11-30 

About

A lightweight tool to quickly and quietly enumerate an Active Directory environment. The goal of this tool is to get a Lay of the Land whilst making as little noise on the network as possible. The tool will make one LDAP query that is used for parsing, and create a cache file to prevent further queries/noise on the network. If no credentials are passed it will attempt anonymous BIND.

Using the -o flag will result in output files for each section normally in stdout. The files created using all flags will be:

-rw-r--r--  1 kali  kali   122 Jun 30 11:37 BASENAME-descriptions.txt
-rw-r--r--  1 kali  kali    60 Jun 30 11:37 BASENAME-domain_admins.txt
-rw-r--r--  1 kali  kali  2620 Jun 30 11:37 BASENAME-groups.txt
-rw-r--r--  1 kali  kali    89 Jun 30 11:37 BASENAME-hosts.txt
-rw-r--r--  1 kali  kali  1940 Jun 30 11:37 BASENAME-keywords.txt
-rw-r--r--  1 kali  kali    66 Jun 30 11:37 BASENAME-org.txt
-rw-r--r--  1 kali  kali   529 Jun 30 11:37 BASENAME-users.txt

Author

Roadmap / Updates

✅ support ntlm hash auth

  • match strings with regex in --keyword
  • convert cache into bloodhound compatible file to reduce traffic

For additional feature requests please submit an issue and add the enhancement tag.

About

Quietly enumerate an Active Directory Domain via LDAP parsing users, admins, groups, etc.

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